This is an extension of a hymn I often sing: you as a compliance officer must understand your business.

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Chief executive officer Travis Tygart said Armstrong was granted a two-week extension to Wednesday's deadline to tell the USADA whether he will help or not.

CNN: February 7, 2013 -- Updated 1619 GMT (0019 HKT)

"This is a natural extension of the convenience store, " says James Keyes, president and chief executive officer of 7-Eleven.

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